2-溴吡啶 、
2-(But-3-ynyl)-4-fluorobenzo[d]oxazole 在
4-fluoro-2-(4-(pyridin-2-yl)but-3-ynyl)benzo[d]oxazole 、 crude residue 、
methanol-dichloromethane 作用下,
以to yield 24 mg (90 mmol, 49%) of 4-fluoro-2-(4-(pyridin-2-yl)but-3-ynyl)benzo[d]oxazole as an orange solid (M.P.=89-89.5° C.)的产率得到4-fluoro-2-(4-(pyridin-2-yl)but-3-ynyl)benzo[d]oxazole